Control of a power supply for a transfer unit in an image...

Details Control of a power supply for a transfer unit in an image... Control of a power supply for a transfer unit in an image...

2008-12-11

2011-11-15

Beatty, Robert (Department: 2852)

Electrophotography

Control of electrophotography process

Control of transfer

Reexamination Certificate

active

08059979

ABSTRACT:
An image forming apparatus has a transfer unit, a power supply unit that takes a value of a current imparted to the transfer unit as a control target and that supplies power conforming to the value of the control target to the transfer unit; and a determination unit that acquires a detection value of a voltage detection unit and a detection value of a current detection unit and that determines, as a control target value for the power supply unit, an optimum value for the control target derived from a characteristic line showing a relationship between both detection values or a detection value of the voltage detection unit and an optimum value of the control target. The characteristic line is a line showing a relationship of a change in the absolute value of the optimum value for the control target shifting from an increasing tendency to a decreasing tendency with an increase in both detection values or the detection value of the voltage detection unit.

REFERENCES:
patent: 5999760 (1999-12-01), Suzuki et al.
patent: 6404998 (2002-06-01), Tanaka et al.
patent: 7266318 (2007-09-01), Inukai
patent: 7376366 (2008-05-01), Deguchi
patent: 7558501 (2009-07-01), Saito et al.
patent: 2005/0100357 (2005-05-01), Nishimura et al.
patent: 2006/0029410 (2006-02-01), Deguchi
patent: 0520819 (1992-12-01), None
patent: 06308844 (1994-11-01), None
patent: 2000089586 (2000-03-01), None
patent: 2004-334017 (2004-11-01), None
patent: 2005-189466 (2005-07-01), None
patent: 2006-053175 (2006-02-01), None
European Search Report corresponding to Patent Application No. 08021237.6 mailed Jun. 4, 2009.

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